Home / 815,715.60-1,223,573.40-283,181.10

Finding the Fourth Proportional to 815,715.60, 1,223,573.40 and 283,181.10

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Solution

The fourth proportional to 815,715.60, 1,223,573.40 and 283,181.10 is: 424,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,715.60 : 1,223,573.40 = 283,181.10 : x
  2. Step 2: Convert to fraction form
    815,715.60/1,223,573.40 = 283,181.10/x
  3. Step 3: Cross multiply
    815,715.60x = 1,223,573.40 × 283,181.10
  4. Step 4: Simplify right side
    815,715.60x = 346,492,861,342.74
  5. Step 5: Solve for x
    x = 346,492,861,342.74/815,715.60
  6. Step 6: Final answer
    x = 424,771.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.